Use activated dot color when fade away animation is disabled.

mFadePattern=false means that a line will not disappear. In this case activated dots should always be drawn in mDotActivatedColor color.

Bug: 201403620
Tests: manual
(cherry picked from commit 1bfee5f03773b3ba42a2bc168a87a432337f9f41)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:f9325437c2aa9eaf921d49d6ea43ce4847e34425)
Merged-In: Ib06cc6a3ec1dbf99bc6cfc959be229dc0ed178d0
Change-Id: Ib06cc6a3ec1dbf99bc6cfc959be229dc0ed178d0